Oil heater



June 24,. 192 1,498,575

l. PUTNAM OIL HEATER Filed Oct. 26, 1923 I INVENTOR.

BY CR 2 A ATTORNEY Patented June 24, 1924.

ISRAEL PUTNAM, or EL'MIRA, NEW YORK."

OIL HEATER.

Application filed October 26, 1923. Serial No. 670,988.

T 0 all 1071,0721 it may concern.-

Be it known that I, ISRAEL PUTNAM, a citizen of the United States, residing at Elmira, in the county of Chemung and State of New York, hav invented certain new and useful Improvements in Oil Heaters; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked thereon.

My present invention relates to oil heaters or stove lamps and particularly to that class of heaters which is adapted to burn for long periods without attention and develop a moderate amount of heat for such purposes as warming poultry brooders and it has for its object to provide a simple and serviceable lamp of a safety construction having special provision for preventing spilled or seeping oil from the burner tube from collecting in the combustion chamber where its fumes are apt to caus an explosion. To these and other ends the invention resides in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure 1 is a central vertical sectional view through a poultry house heater constructed in accordance with and illustrating one embodiment of my invention.

Figure 2 is a side view of the burner tube and drain plate and Figure 3 is a top view of the latter.

Similar reference numerals throughout the several views indicate the same parts.

Heating lamps of the nature here involved comprise generally a font or oil holding base having a central burner tube surrounded by concentric tubes constituting a combustion chamber and radiating and guard elements. The required vent from the oil chamber has usually been placed close to the wick tube or burner tube within the combustion chamber with the result that spilling or seepage of the oil collected in the combustion chamber. The fumes therefrom collect in the combustion chamber and explode. The explosion may not be violent but is suflicient to extinguish the flame which might not be discovered for some time'as the lamps are built to burn for long periods without attention. "In the practice of my invention I provide for venting the oil chamber at a point near the burner tube but with an outlet that directs escaping oil to the exterior of v the combustion chamber and its associatedfstructure so that it spreads quite harmlessly at the sides of the oil chamber.' Referring more particularly to the drawings 1 indicates the oil chamber constructed of a circular flat bottom 2 and a convex top 3 At the center of the latter, being the high point of the reservoir, is an opening for the burner tube. This consists of a tube 1 extending through a disk 5 having an upturned marginal edge 6 and which forms a wide collar on the'tube at a point intermediate its height. The lower? projecting end of the tube is fitted into the center of the reservoir top securely but is not soldered so that there is a vent provided for the oil chamber. The collar 5 rests upon the top 3 to which it conforms and positions the burner 2 within the reservoir.

Surroundinn the burner tube and resting on the collar 5 at its lower end is a tube 7 constituting the. combustion chamber. It has ears 8 at its upper end by means of which it is secured to the bottom 9 of a gas chamber 10 shaped and constructed substantially like the oil chamber 1 and which it supports. An outer concentric tube 11 also extends from the collar 5 to the gas chamber 10 resting within the flanged rim 6 of the collar 5. The air supply to support combustion enters through opening 12 at the top of the outer tube 11 which also acts as a guard to prevent little chicks from coming in contact with a hot portion of the stove. This air strikes an annular deflector 13 depending from the bottom 9 of the gas chamber mid- 9 way between the inner and outer tubes and is deflected downwardly to enter the combustion chamber through draft openings 14 in the bottom of the combustion chamber 7 and feed the burner.

The hot gases and products of combustion pass out of the top of the combustion chamber through vents 15 and thence against the bafile 13 and through vents 16 in the bottom 9 of the gas chamber 10. The latter absorbs and radiates the heat, the final exit being made through a chimney 17 in the center of the top of the gas chamber.

The ears 8 that secure the latter to the combustion chamber 2 are preferably formed against the inner walls of on straps 18 lying d the tube and hooked at their lower through the openings 14 at 19.

It will be seen from this construction that the collar 5 completely seals the combustion chamber from the oil chamber and any oil that seeps or slops through the burner tube opening must escape between the lower face of the collar and the upper surface 3 of the base, the final vent being at the point 20 below the upturned edge 6 of the collar within the confines of which the entire superstructure is contained. There is therefore no possibility of oil or gas issuing at this point from becoming ignited.

I have illustrated the burner tube as fitted with an improved type of wick holder and adjuster 21 and wick 22 but these as well as the specific construction of the tube itself has no bearing upon the present invention.

I claim as my invention:

1. In an oil heater, the combination with a reservoir and a combustion chamber surmounting the same, of a burner tube projecting into both the reservoir and the combustion chamber and provided with a collarsuperposed upon the reservoir and extending to the outside walls of the combustion chamber, the reservoir being provided with a vent communicating with the under side of the collar.

2. In an oil heater, the combination with a reservoir having an opening therein and a combustion chamber surmounting the same, of a burner tube projecting into the combustion chamber and having a slip fit in the opening in the reservoir constituting a vent for the latter, said burner tube being provided with a collar superposed upon the reservoir and extending to the outside walls of the combustion chamber.

3. In an oil heater, the combination with a reservoir having a convex top provided with a central opening and a combustion chamber surmounting the same, of a burner tube projecting into the combustion chamher and having a slip lit in the opening in the reservoir constituting a vent for the latter, said burner tube being provided with a collar superposed upon the reservoir and extending to the outside Walls of the com bustion chamber.

ISRAEL PUTNAM. 

